Three of the outlets were found to have contravened licensing conditions.

Five women, aged between 29 and 48, were arrested for offences under the Employment of Foreign Manpower Act and the Women's Charter.

In checks made at public entertainment outlets along South Bridge Road, Keng Cheow Street, Serangoon Road and Jalan Besar, three outlets were found to have contravened public entertainment licensing conditions.

Ten women, aged between 19 and 27, were arrested for offences under the Employment of Foreign Manpower Act.

A 49-year-old man was also arrested for an offence under the Liquor Control Act.

The police said that actions will be taken against the operators for flouting the rules and regulations under the above-mentioned acts.

"The police takes a serious view of anyone found breaking the law and will continue to take tough enforcement stance against such activities," it said.